Crusher or disintegrator.



J. E-IBASTER.

CRUSHER 0R DISINTEGRATOR.

APPLICATION mum) NOV. 8, 1913.

1',121,454.I 1 I Patented Dec. 15,1914."

2 SHEETSSHEET 1.

' J. E. EASTER. GRUSHER 0B. DISINTEGBATOR.

APPLICATION FILED NOV. s. 1913.

1 1 21,454. Patented Dec. 1 5, 1914.

2 mum-sum 2.

UNITED STATES PATENT OFFICE.

. JosrirH-E. EASTER, or CLEVELAND, OHIO."

cnosHEn on DISINTEGRATOR.

I To all whom it may concern Be it known that I, JOSEPH E. BASTER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Crushers or Disintegrators, of which the following is a specification. I

My invention relates to improvements in crushers or disintegrators, the primary object being to provide a generally improved crushing or reducing mill for crushing, pulverizing or comminuting substances to a relatively fine or divided condition.

The'improved crusher or d'isintegrator is adapted to crush or reduce an almost infinite variety of material whether of a relatively hard or soft. character, the' improved machine relating. to that class or type commonly known as centrifugal crushers, the

present embodiment comprising a casing provided with stationary breaker members or plates and a plurality of centrifugal hammer bars pivotally carried by and cir-.

cumferentially arranged about a driving shaft running at airelatively high speed and holding or projecting the hammer. bars by centrifugal force, said hammer bars by reason of. their centrifugal projection being adapted to firststrike and then crush the intervening material between the stationary breaker members or plates and the respective crusher faces of the hammer bars.

In carrying-out the above expressed function the centrifugal hammer or crusher bars have their initial striking and crushing faces so disposed or inclined relative to the stationary breaker members and their pivoted connection about the driving shaft, when the hammer bars not only initially strike the hammerbars are in their normal centrifugal positions, that their crusher faces will first strike the intervening material, and when the hammer bars in consequence thereof are slightly deflected or tilted rear-- wardly on the pivotal connections, the crusher faces of the hammer bars are caused to assume a crushing action upon the intervening material.

By reason of the construction described the material but follow such striking action with a crushing action upon the material becit-ween the face sides of the breaker members or blocks and the hammer bars, this latter action being a very powerful one and similar-t0 the forceexert'ed by the ordlnary tog- Specification of Letters r am. at t d 15, 1914,

Application filed November 8, 1913. Serial No. 799,900.

tive arrangement and disposition of the I latter the centrifugal hammer bars or members are transformed into combined ham- Iner and crusher bars.

With the above mentioned and other ends in view, the invention consists in the novel construction, arrangement, and combination of parts, hereinafter described, illustrated in one of its embodiments in the accompanying drawings, and particularly pointed out in the appended claims.

Referring to the drawings, forming a part of this specification, Figure 1, is a side elevation of the improved crusher or disintegrator. Fig.- 2, a central longitudinal sectional view, illustrating the action of the centrifugal hammers when in operation. Fig. 3, a transverse sectional view taken on line 33 of Fig. 2. Fig. 1, a top plan view of the base or screen containing portion of the crusher casing, the driving shaft. and centrifugal hammers carried thereby, being removed. y

Similar numerals of reference designate like parts throughout all the figures of the drawings.

The improved crusher or disintegrator comprises a casing consisting of a stationary base portion 1, and a hin ed top or cover 2, the latter being coimecter to the stationary base at either end by means of hinge members 2, and 1, connected by bearing bolts 3. The stationary base 1. is provided with laterally extending members 1", adapted to support suitable journal or bearing blocks 4, the latter carrying a driving shaft 5. The shaft 5, is adapted to be driven at a comparatively high rate of'speed by means of pulleys 6. The shaft 5, is-provided with a pair of bearing hubs or check blocks 7, the latter being secured by means of a suitable key member 8, said hubs 7, being held and spaced apart by means of a two-part spacing collar 9, saidhubs or blocks 7, being adapted to abut against the inner sides of the base and top members 1, and 2, respectively, and being preferably provided with hearing hubs 7 fitting within cylinder shaped bearing openings 1, in the meeting sides of the base and top members 1, and- 2, as shown most clearly in Fig. 3, of the drawings. The hub or cheek blocks 7, are pro-- vided about their outer periphery with a plurality or series of centrifugal hammer bars or members 10, the latter being provided at their ends with crank arms 10, pivotally connected to the bearing hubs'7,

menses by means of bearing members 10", extending toward each other and taking into suitable bearing openings in the hub or check members 7. Whenin repose the centrifugal hammer bars 10, are adapted to rest within the recess portions 7*, of the hearing or hub members 7. i

The casing is provided with a plurality or series of breaker plates or members 11, 12, and 13, said breaker plates or members, in the present instance,- being removably secured within the walls of the removable top or cover 2, by means of bolts 14. The members 11, 12, and 13, are preferably transversely corrugated as shown and arranged in suitable proximity or relatlon to the faces of the hammer bars when the latter are in their normal outstanding or centrifugal.

. eally arranged with respect to the bearing men'lbers 10", or pivotal connections of the hanuner bars, so that whea the latter are moved rearwardly or'tilted upon their pivots 10", after initially striking the material, a crushing toggle-like action will take place as indicated by the dotted lines A, in Fig. 2, of the drawings. As shown in the present embodiment of this invention, the eccentrieally arranged or cam-shaped faces are normally carried by centrifugal force in a position in advance of that of ,the true radial position' with respect to the pivots 10 and shaft 5, as indicated by the radial lines shown in Fig. 2, of the drawings.

The segmental face portions 10", of the bars or haunners .10, .are preferably transz versely corrugated as shown, and the normal inclined position of the face portions 10, of these bars assist in not only crushing the material but also in expelling the crushed material through the openings 15, of thesegmental screens 15, remo'vably mounted in the base portion 1, of the casing The material to be crushed is adapted to be fed into the crusher or disintegrator through the medium of a. hopper or feed .neck 16, communicating with an opening 16, at the front portion of the top or cover 2, and when 1t 1s des red to inspect or reor to clean out the machine, one or both of the bearing bolts 3, may be removed, and the top or cover-either tilted up or removed as desired, through the medium of handles 17, attached to the sides of the top or cover 2. i

From the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of my invention will be readily understood.

Having thus described one of the embodiments of my invention, what I claim and desire to secure by Letters Patent, is,.

1. In a centrifugal crusher, a pivoted centrifugal hammer bar having a segmental crusher face eccentrically arranged with re speet to its pivoted connection.

2. In a crusher, a casing provided with breaker members at its front and a feed neck at the rear, and a driving shaft carrying a plurality of pivoted centrifu a1 hammer members having eccentrical y disposed crusher faces.

In testimony whereof I have aflixed my signature in presence of two witnesses.

' f JOSEPH E. EASTER. Witnesses: Y

O. U. BILLMAN, J. W. IIAYWARD.

move any of the internally arranged parts, 

